What to expect from the Promistreams beta phase

Promistreams are currently in their beta testing phase. What this means in practice: 
 
 You can start using Promistreams in your projects today. But be prepared to sometimes debug issues. 
 Linear pipelines will generally work perfectly. More complex pipelines may still run into small issues in edgecases. 
 The stream interface has not been stabilized yet, but it is also not likely to meaningfully change anymore. 
 At any given time, the latest versions of @promistream packages should work correctly together. 
 A pretty broad collection of streams is already available. Some of the most commonly useful ones are documented on this wiki , and there are more packages on npm .  
 However, the stream collection is still incomplete; in particular, several splitting and merging streams are still in active development, as well adapter streams from and to different stream and sequence types. 
 Documentation may still be missing for a (shrinking) subset of Promistream packages. However, a Promistream package will typically include an example.js that demonstrates its use. 
 Bugs should, for now, be reported privately, either on Matrix (@joepie91@pixie.town) or by e-mail (admin@cryto.net). I'll walk through the issue and debug it with you personally. If you're not sure whether it's a bug, then it's a bug, just potentially a documentation bug instead of an implementation bug. Please let me know!